:root{--ink:#22495A;--muted:#486573;--blush:#F4EFEB;--sand:#D8C7BD;--line:#e2e5e3}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font-family:'Forum',Georgia,serif;font-size:18px}a{color:inherit}button{font:inherit}header{max-width:1120px;margin:auto;padding:18px 28px 8px;display:flex;align-items:center;justify-content:space-between;gap:15px}.brand img{display:block;width:clamp(190px,29vw,320px);height:auto}.header-link{font-family:Arial,sans-serif;font-size:11px;text-transform:uppercase;letter-spacing:.13em;text-decoration:none;border-bottom:1px solid;padding-bottom:5px;white-space:nowrap}main{overflow:hidden}.hero{max-width:1120px;margin:auto;padding:28px 28px 36px;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:45px}.kicker{font:600 11px Arial,sans-serif;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}h1,h2{font-family:'Codex',Georgia,serif;font-weight:400;letter-spacing:-.045em}h1{font-size:clamp(45px,5.8vw,80px);line-height:1.02;margin:16px 0 22px}h1 em{font-weight:400;color:#9e7f70}p{line-height:1.48}.intro{max-width:580px;font-size:clamp(19px,2vw,23px);margin:0 0 24px}.primary{display:inline-flex;align-items:center;gap:18px;background:var(--ink);color:#fff;padding:16px 22px;text-decoration:none;font:600 13px Arial,sans-serif;letter-spacing:.02em;transition:background .2s,transform .2s}.primary:hover{background:#386477;transform:translateY(-2px)}.small-note{font:12px Arial,sans-serif;color:var(--muted);margin:12px 0 0}.hero-visual{min-height:340px;background:var(--blush);border-radius:180px 180px 8px 8px;position:relative;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:35px;text-align:center}.circle{width:175px;height:175px;border:1px solid #b99e90;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:Georgia,serif;font-style:italic;font-size:37px;line-height:1.1;transform:rotate(-8deg)}.visual-caption{font:11px Arial,sans-serif;letter-spacing:.15em;text-transform:uppercase;margin-top:28px}.explore{background:var(--ink);color:#fff;padding:42px 28px 46px}.explore-inner{max-width:1120px;margin:auto;display:grid;grid-template-columns:.82fr 1.18fr;gap:52px}.explore h2{font-size:clamp(32px,3.7vw,51px);line-height:1.08;margin:12px 0}.explore-intro{color:#d6e0e3;font-size:17px;max-width:300px}.selector{display:grid;grid-template-columns:1fr 1fr;gap:9px}.topic{min-height:57px;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:8px;background:transparent;border:1px solid #73909c;color:#fff;padding:13px 15px;cursor:pointer;font:15px Arial,sans-serif;transition:background .2s,color .2s}.topic[aria-pressed=true],.topic:hover{background:#fff;color:var(--ink)}.topic span:last-child{font-size:20px}.answer{margin-top:13px;padding:17px 21px;background:#fff;color:var(--ink);min-height:108px}.answer strong{font:600 14px Arial,sans-serif}.answer p{margin:7px 0 0;font-size:17px}.process{max-width:1120px;margin:auto;padding:48px 28px 35px;display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}.process h2{font-size:clamp(32px,3.6vw,48px);margin:10px 0}.process p{margin:0 0 18px;font-size:19px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}.step{border-top:1px solid var(--sand);padding-top:12px}.step b{font:600 12px Arial,sans-serif;color:#9e7f70}.step span{display:block;font-size:17px;margin-top:8px}.about{border-top:1px solid var(--line);max-width:1120px;margin:0 auto;padding:24px 28px;display:flex;align-items:center;gap:22px}.about img{width:80px;height:80px;border-radius:50%;object-fit:cover;object-position:center 25%}.about p{margin:4px 0;font-size:16px}.about strong{font:600 13px Arial,sans-serif}.about a,.foot a{font:12px Arial,sans-serif;text-decoration:underline;text-underline-offset:4px}.foot{border-top:1px solid var(--line);padding:19px 28px 28px;max-width:1120px;margin:auto;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.foot small{font:11px Arial,sans-serif;color:var(--muted)}.foot nav{display:flex;gap:20px}.weight .hero-visual{background:#e7eeed}.weight .circle{border-color:#8fa9a9}.weight h1 em{color:#6f8b8c}@media(max-width:720px){header{padding:15px 20px 7px}.brand img{width:clamp(180px,52vw,260px)}.header-link{font-size:10px}.hero{padding:20px 22px 30px;display:block}.hero-visual{display:none}h1{font-size:clamp(43px,11vw,60px);margin:13px 0 15px}.intro{font-size:19px;margin-bottom:19px}.primary{width:100%;justify-content:space-between;padding:16px}.explore{padding:30px 22px}.explore-inner{display:block}.explore h2{font-size:35px;margin:8px 0}.explore-intro{font-size:16px;margin:0 0 18px;max-width:none}.selector{gap:8px}.topic{font-size:13px;padding:11px;min-height:56px}.answer{min-height:100px;padding:14px 16px}.answer p{font-size:16px}.process{display:block;padding:30px 22px 23px}.process h2{font-size:34px;margin:8px 0 12px}.process p{font-size:17px}.steps{gap:10px}.step span{font-size:15px}.about{padding:19px 22px}.about img{width:66px;height:66px}.about p{font-size:14px}.foot{padding:18px 22px 25px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Interactive flip cards: one tap to discover, another to return. */
.flip-selector{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:stretch}
.flip-card{perspective:1100px;min-width:0;height:188px}
.flip-inner{width:100%;height:100%;position:relative;transform-style:preserve-3d;transition:transform 1.15s cubic-bezier(.22,.65,.24,1)}
.flip-card.is-flipped .flip-inner{transform:rotateY(180deg)}
.flip-face{position:absolute;inset:0;width:100%;height:100%;backface-visibility:hidden;-webkit-backface-visibility:hidden;border:1px solid #89a4ae;border-radius:3px;box-sizing:border-box}
.flip-front{display:flex;flex-direction:column;justify-content:space-between;align-items:flex-start;text-align:left;padding:20px;background:#315768;color:white;cursor:pointer;font:400 clamp(18px,2vw,25px) 'Forum',Georgia,serif;line-height:1.16;transition:background .2s}
.flip-front:hover{background:#416a7b}.flip-icon{align-self:flex-end;font:24px Arial,sans-serif}
.flip-back{transform:rotateY(180deg);display:flex;flex-direction:column;justify-content:space-between;gap:9px;background:#f4efeb;color:#22495a;padding:15px 17px;border-color:#d8c7bd}
.flip-back p{font:15px/1.4 'Forum',Georgia,serif;margin:0;overflow:auto}
.flip-close{align-self:flex-start;background:none;border:0;border-bottom:1px solid currentColor;padding:4px 0;color:inherit;cursor:pointer;font:600 11px Arial,sans-serif;letter-spacing:.04em}
.flip-face:focus-visible,.flip-close:focus-visible{outline:3px solid #d8c7bd;outline-offset:3px}
@media(max-width:720px){.flip-selector{gap:9px}.flip-card{height:192px}.flip-front{padding:14px;font-size:19px}.flip-back{padding:12px}.flip-back p{font-size:14px;line-height:1.33}}
@media(max-width:370px){.flip-card{height:215px}.flip-front{font-size:17px}.flip-back p{font-size:13px}}
@media(prefers-reduced-motion:reduce){.flip-inner{transition:none}}

/* Cards flip on mouse hover or explicit touch; no scroll-triggered flip. */
@media(hover:hover) and (pointer:fine){.flip-front:hover{background:#416a7b}}

/* V7: more expressive, discoverable cards without extra visual clutter */
.flip-card{height:202px;filter:drop-shadow(0 5px 10px rgba(4,28,38,.13));transition:filter .3s ease,transform .3s ease}
.flip-front{position:absolute;overflow:hidden;background:linear-gradient(140deg,#315c6d 0%,#244a5b 74%);border:1px solid #8ba6ae;border-radius:10px;padding:21px;transition:background .3s ease}
.flip-front:before{content:'';position:absolute;right:-38px;bottom:-58px;width:152px;height:152px;border:1px solid rgba(255,255,255,.28);border-radius:50%;pointer-events:none}
.flip-front:after{content:'';position:absolute;right:-12px;bottom:-34px;width:104px;height:104px;border:1px solid rgba(255,255,255,.19);border-radius:50%;pointer-events:none}
.flip-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:1px solid rgba(255,255,255,.62);border-radius:50%;font:21px Arial,sans-serif;transform:rotate(35deg);transition:transform .35s ease,background .35s ease;z-index:1}
.flip-front>span:first-child{position:relative;z-index:1;max-width:85%}
.flip-back{border-radius:10px;background:linear-gradient(145deg,#fffaf7,#eee4dd);padding:18px 20px}
.flip-card.is-flipped{filter:drop-shadow(0 9px 18px rgba(4,28,38,.23))}
@media(hover:hover) and (pointer:fine){.flip-card:hover{transform:translateY(-5px)}.flip-card:hover .flip-icon{transform:rotate(135deg);background:rgba(255,255,255,.15)}}
.about img{width:96px;height:96px;flex:none}
.about p{max-width:750px}
@media(max-width:720px){.flip-card{height:198px}.flip-front{padding:15px}.flip-back{padding:12px}.flip-icon{width:30px;height:30px;font-size:17px}.about img{width:78px;height:78px}}
@media(max-width:370px){.flip-card{height:218px}}
@media(prefers-reduced-motion:reduce){.flip-card,.flip-icon{transition:none!important}}

/* V8: visual-first cards, no hover instructions or return labels */
.flip-card{height:210px}
.flip-front{justify-content:center;align-items:center;text-align:center;padding:22px 20px;background:linear-gradient(135deg,#3d6b79 0%,#22495a 80%)}
.flip-front>span:first-child{max-width:100%;font-family:'Codex',Georgia,serif;font-size:clamp(23px,2.5vw,34px);line-height:1.08;letter-spacing:-.025em}
.flip-icon{position:absolute;right:13px;bottom:13px;width:28px;height:28px;font-size:17px;opacity:.85;transform:rotate(0deg)}
.flip-back{align-items:center;justify-content:center;text-align:center;padding:20px 17px;background:linear-gradient(150deg,#f9f3ee,#e9dcd3)}
.flip-back p{font-family:'Codex',Georgia,serif;font-size:clamp(22px,2.2vw,30px);line-height:1.14;letter-spacing:-.025em;font-weight:400;white-space:pre-line;overflow:visible}
.flip-back:before{content:'✦';font:20px Georgia,serif;color:#a78676;display:block;margin-bottom:13px}
.flip-front:before{width:185px;height:185px;right:-78px;bottom:-88px;transition:transform .5s ease}
.flip-front:after{width:140px;height:140px;right:-57px;bottom:-68px}
@media(hover:hover) and (pointer:fine){.flip-card:hover .flip-front:before{transform:scale(1.2)}.flip-card:hover .flip-icon{transform:rotate(90deg)}}
@media(max-width:720px){.flip-card{height:190px}.flip-front{padding:12px}.flip-front>span:first-child{font-size:clamp(19px,5.4vw,25px)}.flip-back{padding:12px}.flip-back p{font-size:clamp(18px,5vw,23px)}.flip-back:before{font-size:16px;margin-bottom:7px}.flip-icon{right:8px;bottom:8px;width:24px;height:24px;font-size:15px}}
@media(max-width:370px){.flip-card{height:195px}.flip-front>span:first-child{font-size:19px}.flip-back p{font-size:18px}}


/* V10: stable face switching on iOS and desktop */
.flip-inner{transform-style:preserve-3d;-webkit-transform-style:preserve-3d}
.flip-face{-webkit-backface-visibility:hidden;backface-visibility:hidden}
.flip-front{transform:rotateY(0deg);visibility:visible;transition:visibility 0s linear .56s,background .3s ease}
.flip-back{transform:rotateY(180deg);visibility:hidden;transition:visibility 0s linear .56s}
.flip-card.is-flipped .flip-front{visibility:hidden}
.flip-card.is-flipped .flip-back{visibility:visible}
@media(max-width:720px){.flip-card{perspective:1400px}}

/* Compact fourth-card verso, readable on desktop and mobile */
.flip-card-symptoms .flip-back p{font-size:clamp(17px,1.8vw,23px);line-height:1.18}
@media(max-width:720px){.flip-card-symptoms .flip-back p{font-size:clamp(15px,4vw,19px);line-height:1.18}.flip-card-symptoms .flip-back:before{margin-bottom:5px}}

@media (hover:none), (pointer:coarse){.flip-card{cursor:pointer;touch-action:pan-y}.flip-back{cursor:pointer}}